SConscript: Include new files. arch/alpha/isa_desc: Make the eaCompPtr and memAccPtr non-const so that execute() can be called on them. arch/alpha/isa_traits.hh: Add enum for total number of data registers. arch/isa_parser.py: base/traceflags.py: Include new light-weight OoO CPU model. cpu/base_dyn_inst.cc: cpu/base_dyn_inst.hh: Changes to abstract more away from the base dyn inst class. cpu/beta_cpu/2bit_local_pred.cc: cpu/beta_cpu/2bit_local_pred.hh: cpu/beta_cpu/tournament_pred.cc: cpu/beta_cpu/tournament_pred.hh: Remove redundant SatCounter class. cpu/beta_cpu/alpha_dyn_inst.cc: cpu/beta_cpu/alpha_full_cpu.cc: cpu/beta_cpu/alpha_full_cpu.hh: cpu/beta_cpu/bpred_unit.cc: cpu/beta_cpu/inst_queue.cc: cpu/beta_cpu/mem_dep_unit.cc: cpu/beta_cpu/ras.cc: cpu/beta_cpu/rename_map.cc: cpu/beta_cpu/rename_map.hh: cpu/beta_cpu/rob.cc: Fix for gcc-3.4 cpu/beta_cpu/alpha_dyn_inst.hh: cpu/beta_cpu/alpha_dyn_inst_impl.hh: Fixes for gcc-3.4. Include more variables and functions that are specific to AlphaDynInst which were once in BaseDynInst. cpu/beta_cpu/alpha_full_cpu_builder.cc: Make params match the current params inherited from BaseCPU. cpu/beta_cpu/alpha_full_cpu_impl.hh: Fixes for gcc-3.4 cpu/beta_cpu/full_cpu.cc: Use new params pointer in BaseCPU. Fix for gcc-3.4. cpu/beta_cpu/full_cpu.hh: Use new params class from BaseCPU. cpu/beta_cpu/iew_impl.hh: Remove unused function. cpu/simple_cpu/simple_cpu.cc: Remove unused global variable. cpu/static_inst.hh: Include OoODynInst for new lightweight OoO CPU --HG-- extra : convert_revision : 34d9f2e64ca0313377391e0d059bf09c040286fa
62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
#ifndef __CPU_BETA_CPU_SAT_COUNTER_HH__
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#define __CPU_BETA_CPU_SAT_COUNTER_HH__
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#include <stdint.h>
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/**
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* Private counter class for the internal saturating counters.
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* Implements an n bit saturating counter and provides methods to
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* increment, decrement, and read it.
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* @todo Consider making this something that more closely mimics a
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* built in class so you can use ++ or --.
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*/
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class SatCounter
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{
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public:
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/**
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* Constructor for the counter.
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*/
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SatCounter();
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/**
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* Constructor for the counter.
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* @param bits How many bits the counter will have.
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*/
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SatCounter(unsigned bits);
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/**
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* Constructor for the counter.
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* @param bits How many bits the counter will have.
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* @param initial_val Starting value for each counter.
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*/
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SatCounter(unsigned bits, unsigned initial_val);
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/**
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* Sets the number of bits.
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*/
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void setBits(unsigned bits);
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/**
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* Increments the counter's current value.
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*/
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void increment();
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/**
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* Decrements the counter's current value.
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*/
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void decrement();
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/**
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* Read the counter's value.
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*/
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const uint8_t read() const
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{
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return counter;
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}
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private:
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uint8_t maxVal;
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uint8_t counter;
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};
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#endif // __CPU_BETA_CPU_SAT_COUNTER_HH__
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